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Simplifying (100 + x)(50 + x) = 15000 Multiply (100 + x) * (50 + x) (100(50 + x) + x(50 + x)) = 15000 ((50 * 100 + x * 100) + x(50 + x)) = 15000 ((5000 + 100x) + x(50 + x)) = 15000 (5000 + 100x + (50 * x + x * x)) = 15000 (5000 + 100x + (50x + x2)) = 15000 Combine like terms: 100x + 50x = 150x (5000 + 150x + x2) = 15000 Solving 5000 + 150x + x2 = 15000 Solving for variable 'x'. Reorder the terms: 5000 + -15000 + 150x + x2 = 15000 + -15000 Combine like terms: 5000 + -15000 = -10000 -10000 + 150x + x2 = 15000 + -15000 Combine like terms: 15000 + -15000 = 0 -10000 + 150x + x2 = 0 Factor a trinomial. (-200 + -1x)(50 + -1x) = 0Subproblem 1
Set the factor '(-200 + -1x)' equal to zero and attempt to solve: Simplifying -200 + -1x = 0 Solving -200 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '200' to each side of the equation. -200 + 200 + -1x = 0 + 200 Combine like terms: -200 + 200 = 0 0 + -1x = 0 + 200 -1x = 0 + 200 Combine like terms: 0 + 200 = 200 -1x = 200 Divide each side by '-1'. x = -200 Simplifying x = -200Subproblem 2
Set the factor '(50 + -1x)' equal to zero and attempt to solve: Simplifying 50 + -1x = 0 Solving 50 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-50' to each side of the equation. 50 + -50 + -1x = 0 + -50 Combine like terms: 50 + -50 = 0 0 + -1x = 0 + -50 -1x = 0 + -50 Combine like terms: 0 + -50 = -50 -1x = -50 Divide each side by '-1'. x = 50 Simplifying x = 50Solution
x = {-200, 50}
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